BENEFIT PLANS (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($) entity	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) entity item	Sep. 30, 2014 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of funded, noncontributory defined benefit pension plans | entity	3		3
Number of unfunded, nonqualified pension plans | entity			3
Normal retirement age | item			65
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Settlement charge	$ (2,031)	$ 0	$ (2,031)	$ 0
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
One-time curtailment gain	$ 0	$ 0	$ 0	$ 3,832